This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz@gmail.com>. Routing Table Report 04:00 +10GMT Sat 31 Dec, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 388032 Prefixes after maximum aggregation: 168367 Deaggregation factor: 2.30 Unique aggregates announced to Internet: 190083 Total ASes present in the Internet Routing Table: 39705 Prefixes per ASN: 9.77 Origin-only ASes present in the Internet Routing Table: 32554 Origin ASes announcing only one prefix: 15514 Transit ASes present in the Internet Routing Table: 5351 Transit-only ASes present in the Internet Routing Table: 137 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 33 Max AS path prepend of ASN (56677) 25 Prefixes from unregistered ASNs in the Routing Table: 1999 Unregistered ASNs in the Routing Table: 1030 Number of 32-bit ASNs allocated by the RIRs: 2144 Number of 32-bit ASNs visible in the Routing Table: 1800 Prefixes from 32-bit ASNs in the Routing Table: 4327 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 112 Number of addresses announced to Internet: 2504923696 Equivalent to 149 /8s, 78 /16s and 26 /24s Percentage of available address space announced: 67.6 Percentage of allocated address space announced: 67.6 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.8 Total number of prefixes smaller than registry allocations: 164463 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 95928 Total APNIC prefixes after maximum aggregation: 31403 APNIC Deaggregation factor: 3.05 Prefixes being announced from the APNIC address blocks: 92286 Unique aggregates announced from the APNIC address blocks: 38721 APNIC Region origin ASes present in the Internet Routing Table: 4619 APNIC Prefixes per ASN: 19.98 APNIC Region origin ASes announcing only one prefix: 1249 APNIC Region transit ASes present in the Internet Routing Table: 729 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 125 Number of APNIC addresses announced to Internet: 632494720 Equivalent to 37 /8s, 179 /16s and 26 /24s Percentage of available APNIC address space announced: 80.2 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 146775 Total ARIN prefixes after maximum aggregation: 74964 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 118927 Unique aggregates announced from the ARIN address blocks: 48922 ARIN Region origin ASes present in the Internet Routing Table: 14816 ARIN Prefixes per ASN: 8.03 ARIN Region origin ASes announcing only one prefix: 5673 ARIN Region transit ASes present in the Internet Routing Table: 1573 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 14 Number of ARIN addresses announced to Internet: 804638400 Equivalent to 47 /8s, 245 /16s and 206 /24s Percentage of available ARIN address space announced: 63.9 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 95203 Total RIPE prefixes after maximum aggregation: 51822 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 87230 Unique aggregates announced from the RIPE address blocks: 55392 RIPE Region origin ASes present in the Internet Routing Table: 16223 RIPE Prefixes per ASN: 5.38 RIPE Region origin ASes announcing only one prefix: 7980 RIPE Region transit ASes present in the Internet Routing Table: 2576 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1256 Number of RIPE addresses announced to Internet: 495420104 Equivalent to 29 /8s, 135 /16s and 130 /24s Percentage of available RIPE address space announced: 79.8 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 37048 Total LACNIC prefixes after maximum aggregation: 8031 LACNIC Deaggregation factor: 4.61 Prefixes being announced from the LACNIC address blocks: 36595 Unique aggregates announced from the LACNIC address blocks: 19051 LACNIC Region origin ASes present in the Internet Routing Table: 1561 LACNIC Prefixes per ASN: 23.44 LACNIC Region origin ASes announcing only one prefix: 452 LACNIC Region transit ASes present in the Internet Routing Table: 285 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 24 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 401 Number of LACNIC addresses announced to Internet: 95159432 Equivalent to 5 /8s, 172 /16s and 4 /24s Percentage of available LACNIC address space announced: 63.0 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 8588 Total AfriNIC prefixes after maximum aggregation: 2072 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 6623 Unique aggregates announced from the AfriNIC address blocks: 2091 AfriNIC Region origin ASes present in the Internet Routing Table: 504 AfriNIC Prefixes per ASN: 13.14 AfriNIC Region origin ASes announcing only one prefix: 160 AfriNIC Region transit ASes present in the Internet Routing Table: 112 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 30878464 Equivalent to 1 /8s, 215 /16s and 43 /24s Percentage of available AfriNIC address space announced: 46.0 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2475 11101 972 Korea Telecom (KIX) 17974 1718 503 37 PT TELEKOMUNIKASI INDONESIA 7545 1629 303 86 TPG Internet Pty Ltd 4755 1516 385 157 TATA Communications formerly 7552 1412 1064 7 Vietel Corporation 9583 1185 90 530 Sify Limited 9829 1170 989 28 BSNL National Internet Backbo 4808 1075 2034 308 CNCGROUP IP network: China169 24560 1004 383 163 Bharti Airtel Ltd., Telemedia 18101 974 131 156 Reliance Infocom Ltd Internet Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3471 3814 220 bellsouth.net, inc. 7029 2917 1017 200 Windstream Communications Inc 18566 2094 383 177 Covad Communications 1785 1862 680 122 PaeTec Communications, Inc. 4323 1623 1065 385 Time Warner Telecom 20115 1614 1550 623 Charter Communications 22773 1517 2909 107 Cox Communications, Inc. 30036 1474 262 689 Mediacom Communications Corp 19262 1389 4683 401 Verizon Global Networks 7018 1301 7012 855 AT&T WorldNet Services Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8402 1547 480 15 Corbina telecom 15557 1092 2161 64 LDCOM NETWORKS 2118 672 99 14 EUnet/RELCOM Autonomous Syste 6830 642 1928 413 UPC Distribution Services 34984 637 132 199 BILISIM TELEKOM 12479 552 636 53 Uni2 Autonomous System 20940 547 176 438 Akamai Technologies European 3320 532 8162 398 Deutsche Telekom AG 3292 480 2106 407 TDC Tele Danmark 8866 465 134 27 Bulgarian Telecommunication C Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1721 319 159 TVCABLE BOGOTA 28573 1569 1064 75 NET Servicos de Comunicao S.A 8151 1453 2981 350 UniNet S.A. de C.V. 7303 1252 755 176 Telecom Argentina Stet-France 27947 634 73 95 Telconet S.A 22047 582 322 17 VTR PUNTO NET S.A. 7738 551 1050 31 Telecomunicacoes da Bahia S.A 3816 548 237 91 Empresa Nacional de Telecomun 6503 539 434 67 AVANTEL, S.A. 11172 530 86 97 Servicios Alestra S.A de C.V Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 1039 958 13 TEDATA 24863 793 146 36 LINKdotNET AS number 3741 280 939 229 The Internet Solution 6713 250 649 18 Itissalat Al-MAGHRIB 15706 242 32 6 Sudatel Internet Exchange Aut 33776 240 13 8 Starcomms Nigeria Limited 29571 216 17 13 Ci Telecom Autonomous system 12258 195 28 60 Vodacom Internet Company 24835 189 80 8 RAYA Telecom - Egypt 16637 160 664 82 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3471 3814 220 bellsouth.net, inc. 7029 2917 1017 200 Windstream Communications Inc 4766 2475 11101 972 Korea Telecom (KIX) 18566 2094 383 177 Covad Communications 1785 1862 680 122 PaeTec Communications, Inc. 10620 1721 319 159 TVCABLE BOGOTA 17974 1718 503 37 PT TELEKOMUNIKASI INDONESIA 7545 1629 303 86 TPG Internet Pty Ltd 4323 1623 1065 385 Time Warner Telecom 20115 1614 1550 623 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7029 2917 2717 Windstream Communications Inc 18566 2094 1917 Covad Communications 1785 1862 1740 PaeTec Communications, Inc. 17974 1718 1681 PT TELEKOMUNIKASI INDONESIA 10620 1721 1562 TVCABLE BOGOTA 7545 1629 1543 TPG Internet Pty Ltd 8402 1547 1532 Corbina telecom 4766 2475 1503 Korea Telecom (KIX) 28573 1569 1494 NET Servicos de Comunicao S.A 22773 1517 1410 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 128.0.0.0/21 12654 RIPE NCC RIS Project 128.0.24.0/24 12654 RIPE NCC RIS Project Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 14.192.0.0/22 45464 Room 201, TGU Bldg 14.192.4.0/22 45464 Room 201, TGU Bldg 14.192.8.0/22 45464 Room 201, TGU Bldg 14.192.12.0/22 45464 Room 201, TGU Bldg 14.192.16.0/22 45464 Room 201, TGU Bldg 14.192.20.0/22 45464 Room 201, TGU Bldg 14.192.24.0/22 45464 Room 201, TGU Bldg 14.192.28.0/22 45464 Room 201, TGU Bldg 37.26.200.0/21 28748 AlphaCron Datensysteme AS 37.26.208.0/20 57660 >>UNKNOWN<< Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:12 /10:27 /11:81 /12:237 /13:465 /14:813 /15:1451 /16:12081 /17:6120 /18:10185 /19:20160 /20:27929 /21:28328 /22:38611 /23:35934 /24:201964 /25:1183 /26:1402 /27:779 /28:166 /29:53 /30:14 /31:0 /32:18 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2545 2917 Windstream Communications Inc 6389 2116 3471 bellsouth.net, inc. 18566 2043 2094 Covad Communications 10620 1616 1721 TVCABLE BOGOTA 8402 1526 1547 Corbina telecom 30036 1433 1474 Mediacom Communications Corp 11492 1115 1152 Cable One 1785 1064 1862 PaeTec Communications, Inc. 7011 1051 1168 Citizens Utilities 15557 1042 1092 LDCOM NETWORKS Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:478 2:414 4:15 5:1 6:3 8:366 12:1948 13:1 14:575 15:11 16:3 17:7 20:9 23:81 24:1712 27:1127 31:770 32:67 33:2 34:2 36:4 37:10 38:791 40:114 41:3018 42:82 43:1 44:3 46:1150 47:3 49:295 50:473 52:13 55:5 56:2 57:41 58:929 59:488 60:343 61:1173 62:936 63:1969 64:4123 65:2304 66:4375 67:1986 68:1165 69:3132 70:925 71:410 72:1785 74:2644 75:431 76:319 77:933 78:871 79:494 80:1190 81:842 82:533 83:530 84:563 85:1167 86:746 87:901 88:358 89:1588 90:261 91:4382 92:532 93:1515 94:1342 95:1051 96:396 97:288 98:766 99:38 100:18 101:124 103:588 106:11 107:120 108:101 109:1424 110:676 111:830 112:432 113:509 114:593 115:702 116:864 117:719 118:899 119:1223 120:365 121:676 122:1619 123:1036 124:1330 125:1347 128:532 129:189 130:189 131:585 132:162 133:21 134:226 135:54 136:206 137:151 138:285 139:126 140:491 141:257 142:381 143:392 144:501 145:67 146:476 147:221 148:633 149:271 150:165 151:192 152:444 153:169 154:7 155:382 156:210 157:365 158:153 159:505 160:346 161:221 162:335 163:188 164:522 165:390 166:546 167:455 168:807 169:146 170:828 171:95 172:4 173:1813 174:587 175:412 176:322 177:450 178:1151 180:1210 181:43 182:677 183:264 184:424 185:1 186:1462 187:797 188:1007 189:1177 190:5339 192:5974 193:5445 194:3787 195:3182 196:1289 197:174 198:3614 199:4239 200:5567 201:1685 202:8508 203:8524 204:4341 205:2421 206:2688 207:2822 208:4016 209:3562 210:2748 211:1474 212:1955 213:1807 214:808 215:93 216:4911 217:1467 218:567 219:338 220:1253 221:560 222:324 223:267 End of report